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Last data update: 2014.03.03

R: Slope in surplus production MP

SPslope

R Documentation

Slope in surplus production MP

Description

A management procedure that makes incremental adjustments to TAC recommendations based on the apparent trend in recent surplus production. Based on the theory of Mark Maunder (IATTC)

Usage

SPslope(x, DLM_data, reps = 100, yrsmth = 4, alp = c(0.9, 1.1), bet = c(1.5, 0.9))

Arguments

`x`	A position in data-limited methods data object
`DLM_data`	A data-limited methods data object
`reps`	The number of quota samples
`yrsmth`	Years over which to smooth recent estimates of surplus production
`alp`	Condition for modifying the DLM_data (bounds on change in abundance)
`bet`	Limits for how much the DLM_data can change among years

Details

Note that this isn't exactly what Mark has previously suggested and is stochastic in this implementation.

Value

A numeric vector of DLM_data recommendations

Author(s)

T. Carruthers

References

http://www.iattc.org/Meetings/Meetings2014/MAYSAC/PDFs/SAC-05-10b-Management-Strategy-Evaluation.pdf